I have xml file in which i want to edit or add or delete the contents..

Hi
I need your help, How to remove some contents and modify some contents from xml file...
<book>
<peson>
<name> AAA</name>
<age>12 </age>
</person>
<peson>
<name> DAA</name>
<age>21 </age>
</person>
<peson>
<name> CAA</name>
<age>32 </age>
</person>
<peson>
<name> CAA</name>
<age>21 </age>
</person>
This is my xml file, i want to remove whole <person> if the age is 21 ... and modify some name based on age..How to do in java ......... Please advise me...I will be thankful to you in this regards.

Here you can read about java + xml
http://java.sun.com/developer/codesamples/xml.html
do note that your xml does not look well formed to me, and will most likely raise errors.

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